Build(deps): Bump actions/download-artifact from 4 to 6

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pre-release.yml

@@ -40,7 +40,7 @@ jobs:
       # Download binaries
       # https://github.com/marketplace/actions/download-a-build-artifact
       - name: 📥 Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test
@@ -52,7 +52,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: 📥 Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test
@@ -64,7 +64,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: 📥 Download
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test

.github/workflows/release.yml

@@ -42,7 +42,7 @@ jobs:
       # Download binaries
       # https://github.com/marketplace/actions/download-a-build-artifact
       - name: 📥 Download
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test
@@ -54,7 +54,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: 📥 Download
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test
@@ -66,7 +66,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: 📥 Download
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       - name: 🌡️ Test
@@ -79,7 +79,7 @@ jobs:
     steps:
       # Download all artifacts to the current working directory
       - name: 📥 Download gcosts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: offline-map-tile-downloader-artifact
       # Release, upload files